html, body{
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

body{
    padding: 1em;
    background: #ffffff;
    color: #000000;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0,0,0,0)
}
